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引用次数: 3
摘要
以太网无源光网络(EPON)结合了以太网和无源光网络(PON)的优点。通过这种方式实现了低价格的高速接入。本文在恒定比特率(CBR)的基础上，研究了动态带宽分配(DBA)的设计问题，提出了改进的DBA算法。有效保证整个EPON的QoS (Quality of Service)和带宽分配的公平性，满足当前网络多业务、多层次优先级的需求。为EPON上行带宽分配中的多业务QoS标准提供参考。
Ethernet Passive Optical Network (EPON) has combined the advantages of Ethernet and Passive Optical Network (PON). High speed accessing at lower price has been realized in this way. In this paper, based on CBR (Constant Bit Rate), design issues of Dynamic Bandwidth Allocation (DBA) are studied and the improved DBA algorithm is proposed. Ensure effectively Quality of Service (QoS) of the entire EPON and fairness of bandwidth allocation, and meet the request of the current network with multi-service, multi-level priorities. Provide reference for the standard of multi-service QoS in EPON uplink bandwidth allocation.
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